Recent Arrival! 2015 GMC Sierra 2500HD Denali Onyx Black Allison 1000 6-Speed Automatic Duramax 6.6L V8 Turbodiesel 4WD
Allison 1000 6-Speed Automatic, 4WD, Jet Black Leather.
Beck Chevrolet Buick GMC is here to serve you with a full line of GM vehicles. We take pride in helping you find the one that's right for you! Whether you're looking for a new or used car, our sales team can help with its no-pressure philosophy. Let us show you how great of a dealership we are through our customer service and the products we offer. We are your #1 choice for new & used cars and trucks. Purchasing any new or used vehicle can be overwhelming. At Beck Automotive, we make the process easy and enjoyable. Stop by our Palatka dealership and find out why people from Jacksonville, St. Augustine, Orange Park, Middleburg, Ponte Vedra, Palatka, Green Cove Springs, Fruit Cove and Starke are choosing Beck Chevrolet Buick GMC as their preferred new & used car dealer.
Used 2015 GMCSierra 2500 HD Denali
- Exterior Color
- Onyx Black
- Interior Color
- JET BLACK, PERFORATED LEATHER-APPOINTED SEAT TRIM
- Odometer
- 243,837 miles
- Transmission
- Automatic
- Drivetrain
- 4WD
- Engine
- Engine: 6.6L V8 DuraMax Diesel, Turbo
- VIN
- 1GT120E86FF588599
- Stock Number
- GN9946G
GMC
Sierra 2500 HD
Included Packages & Accessories
Detailed Specifications
- Max seating capacity: 5
- Fuel System: Direct Injection
- Fuel tank capacity: 36 gal
- Horsepower: 397
Dealer Notes
KBB.com Consumer Reviews

Overall4.6Out of 5
- 5.0
Best HD Truck Ever !
By BZ | on Thursday, April 09, 2020
After owning a 1500 Sierra and stepping up to a 2500 HD Diesel there is a night and day difference when towing, highway MPG is surprisingly good for a 8000lb vehicle, average between 20-24 depending on conditions. Towing mpg is much better than gas V8. No strain at all on vehicle when towing. Truck has been 100% reliable so far @ 19K with zero issues. Allison transmission is the best I ever used, nothing else compares to this transmission !… - 5.0
This truck is awesome
By Army Vet | on Sunday, May 26, 2019
I love my GMC. It is reliable, well built, comfortable (my wife loves to road trip in our GMC) and gets excellent mileage (20-24 MPG on the hi-way). The truck drives well and is very solid feeling. The Duramax/Allison duo is unmatched in my opinion.… - 4.0
Great
By Ram | on Thursday, July 01, 2021
Kelley blue book is great. I recommend it to everyone. It gave me that answer I wanted. And now I feel comfortable.…
Based on 32 consumer ratings for 2015–2019 models. | Privacy
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